20191664

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40709}}^1$

素因数の和:40748

約数の個数: 20

約数和(自身を含む): 40384320

約数和(自身を除く): 20192656

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40709, 81418, 162836, 325672, 651344, 1261979, 2523958, 5047916, 10095832, 20191664]

約数ペア:

[(1, 20191664), (2, 10095832), (4, 5047916), (8, 2523958), (16, 1261979), (31, 651344), (62, 325672), (124, 162836), (248, 81418), (496, 40709)]